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The interest-free runway
Existing debt

0% APR balance transfer cards

A balance transfer moves existing card debt to a new card with a 0% intro APR. The fee is small relative to the interest you avoid. Here is the concise version.

A note on scope
This site is purchase-first. For balance transfer strategy in depth, including chaining, fee analysis, and individual card reviews focused entirely on BT, our sister site bestbalancetransfercreditcard.com goes much deeper. The summary below is enough to know whether to transfer.
The mechanic

How a balance transfer works in 60 seconds

You apply for a card that offers a 0% introductory APR on balance transfers. After approval, you tell the new issuer how much you want transferred and from which existing card. The new issuer pays off the old card directly (you never touch the cash). The balance now sits on the new card at 0% APR for the intro period (typically 18 to 21 months). You owe the new card, not the old one.

The old card is now empty. Do not put new charges on it; that is how people end up with double the debt.

The cards

Best balance transfer cards in our table

Cards in our home page comparison ranked by balance transfer intro period and fee. Verify current terms on the issuer site before applying.

CardBT intro periodBT feeTransfer deadline
Reflect CardAround 21 monthsAround 5% (min $5)120 days
Discover It Balance TransferAround 18 monthsAround 3% intro then 5%60 days
Simplicity CardAround 18 monthsAround 5% (min $5)120 days
BankAmericardAround 18 monthsAround 3% (min $10)60 days
Citi Double CashAround 18 monthsAround 5% (min $5)120 days
The fee math

Is the BT fee worth it?

Almost always, if your current APR is above 15 percent. The fee comes out of the savings, not on top of them.

BalanceTypical fee (3% to 5%)Interest avoided over 18 months at 22%
$3,000$90 to $150$167 to $250
$5,000$150 to $250$278 to $417
$10,000$300 to $500$556 to $834
Three things to know

Quick rules

The deadline matters

Most cards apply the 0% rate only to balances transferred within 60 to 120 days of opening the card. Initiate the transfer immediately on approval to maximise your runway and avoid missing the window.

Same-issuer restriction

You cannot transfer between cards from the same issuer. So a Chase Sapphire balance cannot move to a Chase Freedom Flex. Pick a new issuer.

Old card stays open

Keep the old card open after you transfer. Closing it reduces total available credit and can hurt your utilization ratio. Use it lightly each month to keep the issuer from closing it for inactivity.

Purchase APR vs balance transfer APR

Why some readers need both

Some cards offer different intro periods for purchases and balance transfers. If you have existing card debt AND an upcoming planned purchase, look for a card with strong terms on both. The Reflect Card and the Shield Runway Visa in our table both apply roughly the same long runway to both. The Citi Double Cash applies the long 0% only to BT, not purchases.

Balance transfer FAQ

3 questions
  1. Almost always, if your current card APR is over 15 percent. A 5 percent BT fee on a $5,000 balance is $250. Carrying that same $5,000 at 22 percent for 18 months would cost about $930 in interest. The transfer saves about $680 net. Run the numbers in our calculator if your situation is different.